字符创空判断

public class Client {
    public static void main(String[] args) {
//        Interceptor interceptor = new Interceptor();
//        System.out.println(interceptor.process());
        String str="ss";
        System.out.println(notEmpty(str));
    }
    public static boolean isEmptyString(String str)
    {
        //return str == null || str.trim().length() == 0;
        return str == null || str.length() == 0;
    }
    public static boolean notEmpty(String str){
        return !isEmptyString(str);
    }
}